What are the values of phi (201212) and phi (111111)?

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- Apr 3rd 2012, 02:28 PMWachoorouphi (201212) and phi (111111)
What are the values of phi (201212) and phi (111111)?

- Apr 4th 2012, 05:53 AMa tutorRe: phi (201212) and phi (111111)

So for example

.

So factorise your numbers..

Yes 269 is prime.(Wink) - Apr 4th 2012, 07:00 AMWachoorouRe: phi (201212) and phi (111111)
I don't know how to use the symbols and I meant to say sigma function, not phi. So it would be sigma (201212) and sigma (111111)?

- Apr 4th 2012, 07:29 AMa tutorRe: phi (201212) and phi (111111)
Since sigma is a multiplicative function where gcd(m,n)=1.

So for example,